US12264438B2ActiveUtilityA1

Soft wet pressed facial tissue

68
Assignee: KIMBERLY CLARK COPriority: Mar 27, 2020Filed: Mar 27, 2020Granted: Apr 1, 2025
Est. expiryMar 27, 2040(~13.7 yrs left)· nominal 20-yr term from priority
D21H 27/40D21H 21/146B32B 2555/00B32B 2535/00B32B 2307/75B32B 2307/744B32B 2307/718B32B 2307/5825B32B 2307/546B32B 2307/54B32B 2262/067B32B 2255/26B32B 2255/12B32B 2250/04B32B 2250/03B32B 2250/02B31F 2201/0787B31F 2201/0761B31F 2201/0756D21H 27/30D21H 27/002B32B 5/26B32B 3/266B32B 29/005B31F 1/14B31F 1/126B31F 1/07B32B 2307/50A47K 10/16D21H 27/005
68
PatentIndex Score
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Cited by
15
References
12
Claims

Abstract

Disclosed are multi-ply tissue products, particularly wet pressed facial tissue products that have been recreped. For example, disclosed are tissue products prepared from wet pressed tissue webs that have been recreped using a print-crepe process that deposits a latex polymer on at least one of the outer surfaces of the tissue web. The tissue products have improved strength and softness, such as a geometric mean tensile strength (GMT) greater than about 1,400 g/3″, a geometric mean tensile energy absorption (GM TEA) of about 20 gocm/cm2 or greater and a TS7 value less than about 16.0. In certain instances, the tissue products also have a low degree of stiffness and a relatively smooth surface, such as a Stiffness Index less than about 8.00 and a TS750 value less than about 20.0.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A multi-ply tissue product comprising a first wet pressed tissue ply and a second wet pressed tissue ply, wherein each of the first and the second wet pressed tissue plies each have a first outer surface and a latex polymer disposed thereon and wherein each of the first and the second wet pressed tissue plies are plied together such that the first outer surfaces face one another, the product having a geometric mean tensile strength (GMT) greater than about 1,400 g/3″, a Stiffness Index from about 5.00 to about 8.00, and a TS7 value less than about 16.0. 
     
     
       2. The product of  claim 1  wherein each of the first and the second wet pressed tissue plies each have a first outer surface and a non-crosslinked vinyl acetate-ethylene polymer and optionally an anti-blocking agent disposed thereon. 
     
     
       3. The product of  claim 1  having a GMT from about 1,400 to about 2,000 g/3″. 
     
     
       4. The product of  claim 1  having TS7 from about 8.0 to about 14.0. 
     
     
       5. The product of  claim 1  having TS750 from about 12.0 to about 20.0. 
     
     
       6. The product of  claim 1  having a geometric mean stretch (GM Stretch) greater than about 15 percent. 
     
     
       7. The product of  claim 1  having a TEA Index of about 1.5 or greater. 
     
     
       8. The product of  claim 1  having a GM TEA greater than about 20.0 g·cm/cm 2 . 
     
     
       9. The product of  claim 1  having a CD Stretch greater than about 10 percent. 
     
     
       10. The product of  claim 1  having a Wet/Dry Ratio greater than about 0.20. 
     
     
       11. The product of  claim 1  having a basis weight from about 35 to about 45 grams per square meter (gsm) and a sheet bulk greater than about 8.0 cubic centimeters per gram (cc/g). 
     
     
       12. The product of  claim 1  having a GM Slope less than about 12.0 kg.

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